Product Description:
1. Introduction:
1. Cartridge heater consists of a cylindrical stainless steel tube and thus prevents itself from corrosion. The watt density can reach 25 W/cm2and the operating temperature can go up to 800°C (1472°F)
2.The cartridge heater is filled with magnesium oxide and compressed to avoid short-circuit. There is a heating wire inside which is wound into a ceramic core. The number of coils varies depending on the power.
3. Various cartridge heaters are available. We develop and manufacture cartridge heaters according to your special demands.
2. Power Determining Factor and Calculation:
The calculation of the cartridge heater power should take the following three aspects into consideration: power at run time; Power at start - up; Heat loss in the system
All calculations should consider the worst case scenario:
Minimum ambient temperature
Minimum operating cycle
Maximum operating temperature
Maximum weight of heating medium ( maximum flow rate for flowing medium )
According to the process, draw the heating process flow chart ( does not involve the material form and specification ). Calculate the heat required for the process. Calculate the heat and time required for system startup. Redraw the heating process flow chart, considering the appropriate safety factor, determine the total power of the heater. Determine the sheathing material and power density of the heating element. Determine the size and number of heaters. Determine the power supply and control system of the heater.
Measuring unit
1. power: w, kw 1kw = 3.412 btu / HR British thermal unit / HR = 1.36 ( horsepower ) = 864 kcal / HR
2. weight: kg1kg = 2.204621b ( pounds )
3. flow rate: m / min
4. flow: m3 / min, kg / h
5. specific heat: kcal / ( kg ºC ) 1kcal / ( kg ºC ) = 1btu / hr. f = 4186.8j / ( kg ºC )
6. power density: w / cm2 1w / cm2 = 6.4516w / in2
7. pressure: MPa
8. thermal conductivity: w / ( m ºC ) 1w / ( m ºC ) = 0.01j / ( CMS ºC ) = 0.578btu / ( ft. h.f )
9. temperature: ºC 1f = 9 / 5 ºC + 321r = 9 / 5 ºC + 491.671k = 1 ºC + 273.15
3. Technical parameters:
| Item description |
Imitation imported cartridge heater |
| Voltage & Power |
220V, Customized |
| Max.Working temperature |
700degree Celsius |
| Pipe diameter |
16mm, Customized. |
| Sheath material |
Stainless steel, copper, incoloy etc. |
| Features |
High density & fast heating |
| Insulation material |
High-purity magnesium oxide powder |
| Unheated zone |
5-10mm |
| Applications |
Injection mold, wrapping machine etc. |
4. Product design:
5. Product display:
6. Certificate:
7. Order instructions:
Please kindly advise your specifications or drawings with following information when you inquiry:
1. Tube (Materials, diameter, length)
2. Wattage and voltage
3. Working environment and temperature
4. Type of terminal
5. Drawing of special type configuration
6. Special testing requirements before shipment
7. We like to get any feedback of finned heating elements from your side.
We will try our best to do for you.
8. Delivery:
For sample or trial order of small quantity, we shall advise the Express Delivery for the high-efficient shipment. And for bulk purchase, we generally apply to the sea transportation. Of course, that would depend on the customers' requirements.
About Us:
Thermal International has been engaged in the development, design, production and sales in one of the sales of industrial electric heating technology company, based on the customers' specific needs, aiming at providing the customized/tailored solution of design, committed to the electric heating and temperature measurement in the field of development, constantly pursuing for technological value-added products,promote industry technology progress, Thermal International brand products have been exported to South Africa, Turkey, South Korea, USA and some other mainstream cities. In addition, we Thermal International has also set our sales representatives in some of the major countries.
Thermal International people always attach great importance to quality controlling from the very beginning to the very end. Thermal International continuously strive to find ways to reducing the production costs, and passing the savings over to you.Superior quality, stylish designs, competitive price and perfect service won us honorable customers. Thermal International services generally including the regular and thorough inspections throughout the manufacturing process, eliminating the need to employ additional quality control inspectors.
FAQ:
1. Are you a factory or a trading company?
A: We're an experienced factory with our exclussive Research & Development team.
Offering you the most professional service.
2. Will you accept customized requirement?
A: Of course, customized service is surely acceptable. Welcome to send us your drawing and more detailed specification parameters. We can supply you the products as per your specific requirements.
3. Could I get some sample?
A: Yes, generally, 1pc sample for free is available. But if you need more samples, we may need to charge you some cost. Besides, for certain products, it may need to open mold before sampling, then we shall need to have the mold fee before sample.
4. What's the delivery time for sample?
A: Generally it shall take 5~7days. For certain products, we need to prepare the materials for it. That depends.
5. What do you generally do in regarding to the products' quality control?
A: We always put much emphasis on products quality. That's the priority. We shall contact strict quality inspection towards the products before delivery. And we've obtained the VDE, CE, UL, ISO and so forth.
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